Extensions such as garage conversions will typically require extra damp proofing to be added as part of conversion, as the existing garage will typically have a single skin design for walls and floors, which was not manufactured to be in accordance with building regulations for habitable rooms. This damp proofing will need to be put into walls and floors. Moreover, the roof of the garage conversion will require water proofing. The damp proofing of the floor of the garage conversion will usually be performed by using a damp proof membrane. This membrane is available in either solid or liquid form. The damp proof membrane will be put down either on top of the pre-existing concrete floor, below the new floor, or as part of both, depending on whether the floor will be a solid or a floating floor. In some garages, the walls have been damp proofed, but this may have to be improved as part of the conversion to be able to meet current building regulations. The walls will need to be damp proofed in order to safeguard the brickwork from rotting slowly as moisture sets in. This can be performed by either utilising damp proof membranes, waterproof rendering, or cavity insulation, depending on the type of walls that are already in the garage. Damp proofing is an important part of the building regulations that the garage conversion should comply with, therefore is it necessary to ensure that your garage conversion incorporates suitable damp proofing methods.
The average cost of Damp proofing is £1500. Costs vary based upon the materials and the organisation selected. The upper price range can be as high as £1725. The material costs are in general about £375
| Avg. price low | Avg. price low |
|---|---|
| Avg. price | Avg. price |
| Avg. price high | Avg. price high |
£1900
£1425
£950
£475
£0
| Labour cost | £1,050 | |
| Material cost | £375 | |
| Waste removal | £75 |
Requests for quotations in Denbigh in May 2026
Requests for Damp proofing quotations in Denbigh in May 2026. 0% change from April 2026.
Requests for Damp proofing quotations in Clwyd in May 2026. 0% change from April 2026.
Denbigh is a market town and also area in Denbighshire, Wales, of which it was previously the county town. The town's Welsh name translates as "Little Fortress", a reference to its historic castle. Denbigh lies near the Clwydian Hills. The population at the 2001 Census was 8,783, enhancing to 8,986 in the 2011 census.
At Home Energy Save GB Ltd we are specialists in all fields of damp proofing and energy efficiency within the home. Whether your problem is loft condensation, rising damp, penetrating damp, black mould or simply heat loss then we can help. We sp...
Phone consultant was lovely and polite. Barry came out to review our home and was very professional, friendly and gave ...
Denbigh - LL16
Enquiry from: Liam G
Start Date: Immediate
Mold in bedrooms x2 condensation in attic (easy access not fully boarded) potential roof leak
Denbigh - LL16
Enquiry from: Carter G
Start Date: Immediate
to carry out a comprehensive check on the the whole property for damp .and rot to give a free quotation and proffer possible solution asap t are you the property owner: owner of the property how man...
Denbigh - LL16
Enquiry from: Janice R
Start Date: Immediate
I have damp in a bedroom in my bungalow and would like a free no obligation quote please
Denbigh - LL16
Enquiry from: John E
Start Date: Immediate
there 2 or 3 areas of damp 1 may need tanking the other is a small area in a corner are you the property owner: owner of the property how many rooms do you need damp proofing: 1-2 rooms property type:...
Denbigh - LL16
Enquiry from: Elin J
Start Date: Immediate
Extensive rising damp on ground floor walls picked up on house survey, want to know extent
Denbigh - LL16
Enquiry from: Sandra J
Start Date: Immediate
damp under the bay window
Denbigh - LL16
Enquiry from: John E
Start Date: Immediate
we have damp in a few area in the house so would best to come see the areas and let us know the best way for it to be treated. cheers are you the property owner: owner of the property how many rooms ...
Denbigh - LL16
Enquiry from: Brenda M
Start Date: Immediate
mortgage survey states some damp in the property are you the property owner: owner of the property how many rooms do you need damp proofing: 3-4 rooms how many rooms do you need damp proofing: 1-2 roo...
Denbigh - LL16
Enquiry from: Richard M
Start Date: Immediate
rising damp downstairs bedroom and damp coming through the kitchen wall middle floor. bedroom is a stone wall kitchen is brick onto stone. preferred contact is email due to shift work. regards richard...
Colwyn Bay - LL29
Enquiry from: Efa H
Start Date: Immediate
assessment where the damp in the walls of flat 1 is coming from, what has caused it and what needs to be done to remedy it. are you the property owner: owner of the property how many rooms do you need...
Abergele - LL22
Enquiry from: RUSSELL J
Start Date: Immediate
THE HOUSE IS A STONE MID TERRACE APPROX 100 YEARS OLD.WE HAVE JUST BOUGHT IT TO RENOVATE AS A HOLIDAY LET BUT THERE IS A DAMP ISSUE WHICH WE NEED ADVICE ON ASAP
Rhyl - LL18
Enquiry from: Jason P
Start Date: Immediate
I have been recommend to have a damp proof course applied to the brickwork of my bungalow so i am looking for prices. Thanks.
Colwyn Bay - LL29
Enquiry from: Robbie H
Start Date: Immediate
Waterproofing to basement
Rhyl - LL18
Enquiry from: Joan C
Start Date: Immediate
Damp on kitchen wall The wall seems very wet and blistered
Prestatyn - LL19
Enquiry from: Jo C
Start Date: Immediate
We have some water ingress in one corner of our basement. Although it looks like it's coming up through the floor, it might also be related to incorrect ground and air brick levels. It would be great ...
Rhyl - LL18
Enquiry from: Angela W
Start Date: Immediate
Could we have a free quote on a damp issue in the property please If you could suggest a date and time Many thanks
Colwyn Bay - LL29
Enquiry from: David S
Start Date: Immediate
We had the rear outhouse plastered to make a utility room / toilet - damp showed through and the plasterer returned, tanked the wall + injected damp proof + re-plastered. Damp again showing and spread...
Rhyl - LL18
Enquiry from: Dino D
Start Date: Immediate
Damp survey and quote for works to be carried out needed
Abergele - LL22
Enquiry from: Shelley R
Start Date: Immediate
Not fully sure, but rising damp in living room and damp musty smelling downstairs cupboards. Possibly issues with condensation upstairs too. A quote for the works required would be great. Thanks.
Abergele - LL22
Enquiry from: Iqra S
Start Date: Immediate
Hi, I am in the process of buying a property and the Homebuyers survey has shown some issues. I am intrested in a quote for a Timber and damp survey that includes quotes for work needed The specific ...
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Damp is a serious problem, particularly if you live in an old property, because it can lead to structural damage. This will cost you big money and could be very dangerous, to yourself and the property. Take damp seriously and get it inspected and resolved as soon as you discover it!
Signs of rising damp tend to be close to the ground, usually no higher than a metre. It usually works its way up walls in horizontal lines. Penetrating damp usually develops in patches and can often be much higher up. For more advice, speak to a damp proofing professional.
There are a few visible signs of damp, although it often goes undetected. However, in older or empty properties, this made become detectable through its smell. These include peeling paint and wallpaper, crumbling plaster, mould growth, black spots or spores on walls and ceilings, and rotting skirting boards and flooring.
You should make sure that all signs of damp have gone before you redecorate your walls. If you want to paint your walls with a water-permeable emulsion paint, you can usually do this after 1 or 2 months. For other types of decoration you should wait longer.
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